Weston McKennie was injured against Villarreal on Tuesday in a blow to each Juventus and the United States.
Midfielder McKennie had to be helped from the pitch with 9 minutes remaining of Juve's 1-1 Champions League draw.
And reviews after the sport counseled the former Schalke man had fractured bones in his left foot.
Head teach Massimiliano Allegri become nevertheless ready on reputable affirmation as he faced the media, saying: "He is going for an X-ray to his foot; we are hoping it's miles nothing extreme."
An prolonged period on the sidelines would activate challenge for both membership and country.
While Juve are fighting for a pinnacle-4 end in Serie A and hoping to strengthen inside the Champions League, the USMNT have vital World Cup qualifiers in opposition to Mexico, Panama and Costa Rica next month.
McKennie's international team-mate Giovanni Reyna left Borussia Dortmund's most recent suit via damage.
